Respiration in PlantsMedium
Question
Match List I with List II
| List I | List II | ||
|---|---|---|---|
| A. | Citric acid cycle | I. | Cytoplasm |
| B. | Glycolysis | II. | Mitochondrial matrix |
| C. | Electron transport system | III. | Intermembrane space of mitochondria |
| D. | Proton gradient | IV. | Inner mitochondrial membrane |
Choose the correct answer from the options given below:
Options
A.A-III, B-IV, C-I, D-II
B.A-IV, B-III, C-II, D-I
C.A-I, B-II, C-III, D-IV
D.A-II, B-I, C-IV, D-III
Solution
Sol. [Key Concept: Sites of aerobic respiration]
Citric acid cycle–mitochondrial matrix (A–II); glycolysis–cytosol (B–I); electron transport system–inner mitochondrial membrane (C–IV); the proton accumulation side–intermembrane space (D–III). Hence, option (4). Strictly, the proton electrochemical gradient is across the inner membrane, with a higher H⁺ concentration in the intermembrane space than in the matrix.
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